Clutch.



S. H. PITKIN & F. MUELLER.

CLUTCH.

APPLIOATION FILED SEPT. 21, 1910.

Patented July 9, 1912.

2 SHEETSSHEET 1.

INVENTORS 454. 71%;. *J .5,-

WITNESSES S. H. PITKIN & P. MUELLER.

CLUTCH.

AAAAAAAAAAAA ILED SEPT. 21, 1910.

' 1,031,729. Patented July 9,1912.

. 2 s1: EEEEEEEEEE 2.

[TNESSES I sew sw'srennn H. meets, on Anson, Ann snrsnnhm Momma, on CLEVELAND, e10, sssmivons T0 WELLMAN-SEAVEBEOEQ-AN cozmeevc, 01 CLEVELAND, omo.

oneness Specification of Letters Eatent.

Patented July 1%; 1%12.

Application filed [September 21, 1930. Serial No. M33351.

' and exact descriiotionof the invention, such as will enable others-skilled in the art to which it appertsins to make'and usethe same. 1 V

This invention relates to improvements in clutch devices and more particularly to a combined clutch and machine hreke,

one object of the invention being to so (2011- struct and arrange an adjustable connection for the fixed end of the clutch or broke hand that the screw forming part of such was, hereinafter the claims.

connection will be incompression.

A further object is to so construct an. ad-

justuble connection for the-fixed end of a clutch or broke hand t-lmt;,'in case of breaku e or stripy iug of the threads on the screw \YHlCll forms part of said connection, the hand wili be held in such manner as to we vent it from interfering with other parts of the mechanism or causing damage.

A further object is to provide simple and efficient means for ndjustuhly connecting one end of ii clutch or broke hand with :1 disk or support and for uiiording a mount ing for the operating lever connected with the loose end of said hand.

With these .und other objects in view the invention consists in certain novel features of construction and combinations of parts in the-accompanying drawings, Figure 1 set forth and pointed out in is a faceview illustrating one invcntion.-

Fig. 2 is a view in section on the line of Fig.1. l ig'. 3 is an enlarged view partly in section showing the adjustable connect in devices for the fixed end oi the'clutch or broke band, Fig. I is a sectional view on the line gj-y of Fig. 3, and Fig. 5 is a sectional view on the line z--z oi Fig.

1 represents disk or spider provided with a hub 2 keyed to the shaft on which it is mounted, and represents i broke wheel or pulley to be mounted loosely upon said shaft and to he; coimectcd with the letter by means of the clutch devices hereinafter described.

A bracket .1; is rigidly secured to the disk or support 1 and projects beyond the periphery thereof,thc free end of said bracket being so disposed as to overhang); the engaging surface of the wheel or pulley 3, as clearly shown in F 2. The head 5 of the bracket 4- which thus overhangs the wheel or pulley 3 is provided with an elongated slot or opening 6 in which a nut or block 7 is movable. The nut or block 7 is made with a threided opening for the so cozninodution'of the threaded port-ion 8 of a rod 9,--the plain portion of this rod being mounted in the rear portion of the head 5 of bracket 4% between scid'ploin portion and the threaded portion 8, the rod 9 is provided wiih fixed collar l0-udupted to shut against ion annular shoulder 11 at one end of the recess or slot 6 indie head 5, The rod 9 projects reorwardly beyond the headf and provided with a threaded portion 12 for the reception of a jam nus Bend the free end of said rod is made sngulur for the reception of a suitable tool by means of which the rod can he turned for adjusting the position of the nut. or block 7. The forward end of the slot 6 is closed by means of a block. 1% in which the forward end of the rod may he loosely mounted and this block is removuhly held in place by means of :1 bolt 15. the provision of the removable block 14, ready ac cess may he had for the removiil of the threaded rod undthe out or hlo'ck 'Z. The nut or block 7 is provided at diametrically opposite sides \Vllll pintles 16 with which the bifurcated members of'un arm 17 pivotally connected. .Che arm 17 is rigidly secured to one end oi a clutch or brokehsnd 18 encircling the peripheral engaging face of the wheel or pulley 2-? and preferably carries a series of shoes 19 to make contact with said engaging face. The bracket is provided with a lateral arm 20 which constitutes a support for )ivoted lever 21. -With the short arm of this lever, and arm 22 is pivotullyconnected and said mm 253 rigidly secured to the brake-hand so that when the long ll'lll of the lever ii is inoved in, one direction. the brake or clutch hand will be tightened on the wheel or pulley 3, and thrs through the incoium o? the disk-l Lind its connections with the brake hand, connect the wheel or pulley 3 with the shaft.

i'icollor 23 is movable longitudinally on suitable shifting device, and this collar is connected, by means of a link Q-t, with the long arm of thelever 21 for operating the latter to apply or release the clutch or brake-band. The disk 1 is preferably provided with a laterally projecting perlpheral flange 25 and at intervals this flange is provided vith bosses 2G to which rods or arms 27 are connected. The rods or arms 27 are made L-shaped as show in Fig.2 so as to overhang the brake or dlut h band and are provided at their free ends with small rollers 28 to engage said brake orclut'ch band and in this manner said band is-prevented from displacement. A l lVith the construction and arrangement of parts above described, the adjusting screw will be in compression instead of in ten- "sion as in prior constructions of which We are aware and if the threaded rod should break or the threads thereon become stripped, the bearing aiforded by the collar 10 against the shoulder 11 will prevent the escape or dangerous displacement of the brake band and thus avoid damages to the mechanism such as would occur it the bra ke-band should become entirely detached from its connection with the disk or support 1.

Adjustment of the brake or clutch band for wear can be readily made by turning the threaded rod 9 to move the nut or block 7 with which the fixed end of said band is connected and accidental turning of said rod will be prevented by means of the jam 'nut 13.

The mounting of the threaded rod 9 in the head 5 of bracket 4 is such that said rod willbe disposed at such an angle relatively to the engaging surface of the wheel or pulley 3 to cause'the brake band to approach the latter when the fixed end of said brake-band is adjusted by the movement of the nut or block 7.

.Having fully described our invention what we claim as newand desire to secure by Letters Patent, is-

1. The combination with a support adapted to be secured to a,shaft, and a wheel adapted to be mounted loosely on the shaft, of a bracket secured tosaid support, a nut movably mounted in said bracket, a rod having a threaded, portion for moving said nut, an enlargement on said rod having a bearing in the bracket in rear of the nut, a clutch band encircling said Wheel and connected at one end with said nut, and a lever pivotally mounted on the support and connected with the other end of the clutch band.

2. The combination with a support afnd a Wheel, of .a bracket secured to the support and provided with a lateral arm, a nut movable in said bracket, a rod mounted in the bracket and having a threaded portion for moving the nut, an enlargement on said rod having a bearing in the bracket in rear of the nut, a clutch band having one end connected with said nut, and a lever pivotally attached to the lateral arm of the bracket and connected with the other end of the clutch band.

3. The combination with a support and a wheel, of a bracket secured to said support and provided beyond the periphery of the latter witha slot, a nut movable in said slot, a rod mounted in the bracket and having a threaded portion passing through said nut, an enlargement on said rod having a bearing in the bracket in rear of the nut, a clutch band encircling said wheel and connected at one end with said nut, and a.

pivoted lever connected with the other end of said clutch band.

4. The combination with a support and a wheel, of a bracket secured to the support and projecting beyond the periphery thereof, a rod mounted in said bracket and having a threaded portionand an enlargement in rear of the threaded portion, said enlargement having a bearing within the bracket, a nut supported by the bracket and movable on said threaded rod forwardly of the enlargement on the latter, a pivoted lever, a clutch band encircling said wheel and connected at one end with said pivoted lever, and means connecting the other end of said clutch" band with the not carried by the bracket, said threaded rod being dis posed tangentially relatively to the-peripheral face of said Wheel whereby, when the nut is moved in one direction by said threaded rod, the connection of the fixed end of the clutch bandwith the nut will be caused to approach the engaging surface of i said wheel.

5. The combination with a support and a wheel, of a bracket secured to the support and provided with a slotted head, a' rod mounted in said slotted head and having a threaded portion passing thereof, avnut movable in the slot of said head and having internal threads forithe accommodation of the threaded portion of the rod, a fixed collar on said rod in rear of the threaded portion of the latter, to'engage the rear wall ofthe .slot'in the head, a clutch through the slot band encircling said wheel, a bifurcated arm secured to the clutch band and connected to said nut at respective sides of the "latter, a pivoted lever, and means connecting the other end of the clutch band with the pivoted lever f;

6. The combination with a support and a Wheel, Oft bracket secured to said support and provided with a head having an elongated slot therein, a removable block closing one end of said slot, a rod mounted in the slotted head and having a threaded portion disposed in the slot of said head, a fixed collar on said rod 'to engage the head at one end of the slot therein, a nut mounted In testimony whereof, We have signed this on the threaded portion of the rod and in the specification in the presence of two subscrih- 10 slot of the head, a clutch-band encircling ing Witnesses.

said Wheel, means connecting one end of said STEPHEN H. PITKIN. clutch-band With the nut in the slotted head, i FRANKLIN MUELLER. a pivoted leverQand means connecting the Vvitnesses:

other end of said clutch-band With the piv- HERBERT P. GLIDDEN,

oted lever. O. L. swAxseo'on, 

